diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/stm32l4+_mcuconf.h b/libraries/AP_HAL_ChibiOS/hwdef/common/stm32l4+_mcuconf.h
index da052820ae6..853341489a3 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/stm32l4+_mcuconf.h
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/stm32l4+_mcuconf.h
@@ -240,10 +240,10 @@
  * I2C driver system settings.
  */
 #define STM32_I2C_BUSY_TIMEOUT              50
-#define STM32_I2C_I2C1_IRQ_PRIORITY         5
-#define STM32_I2C_I2C2_IRQ_PRIORITY         5
-#define STM32_I2C_I2C3_IRQ_PRIORITY         5
-#define STM32_I2C_I2C4_IRQ_PRIORITY         5
+#define STM32_IRQ_I2C1_PRIORITY             5
+#define STM32_IRQ_I2C2_PRIORITY             5
+#define STM32_IRQ_I2C3_PRIORITY             5
+#define STM32_IRQ_I2C4_PRIORITY             5
 #define STM32_I2C_I2C1_DMA_PRIORITY         3
 #define STM32_I2C_I2C2_DMA_PRIORITY         3
 #define STM32_I2C_I2C3_DMA_PRIORITY         3